Voodoo Shade vs Targor Rageshade

How close are they?

ΔE 17.2, loose: different enough that you should pick on purpose. Targor Rageshade is more muted, cooler than Voodoo Shade.

Can I use Targor Rageshade instead of Voodoo Shade?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Targor Rageshade is more muted, cooler than Voodoo Shade.

Can I use Voodoo Shade instead of Targor Rageshade?

The same difference applies the other way round: Voodoo Shade is more saturated, warmer.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.